Ctrl+T

? Probably zsh: its default binds Ctrl+T to transpose-chars.
  Unverified. Your shell configuration may override it.

Route
  1  Remapper      v  none detected
  2  Compositor    -  not inspected
  3  Terminal      -  not inspected
  4  TTY driver    -  not inspected
  5  Input method  -  not inspected
  6  Multiplexer   -  not inspected
  7  zsh           ?  transpose-chars                        default, unverified

Confidence  default: zsh's built-in default; your configuration may override it.

To confirm
  eval "$(whykey shell-init zsh)"  then run whykey ctrl+t again

More  whykey ctrl+t -v  -  whykey listen
